Insulator suspension link



May 14, 1929. M'. F. H. GOUVERNEUR 5 1 INSULATOR SUSPENSION LINK Filed April 9, 1925 Patented May 14, 1929. i

' UNITED STATES PATENT OFFICE.

MINOR F. H. GOUVEENEUR, OF BALTEMORE, MARYLAND, ASSIGNOR TO LOCKE IN- SULATOR CORPOBATION, OF BALTIMORE, MARYLAND, A CORPORATON OF :MARY- LAND.

Application filed Aprl The invention relates to suspension links for conneoting insulators of 'the Hewlett type.

It is well known that insulators of this kind are formed with interlinking curved passages for the reception of suspension cleinents designed to be connected by some ineans or other whereby a plurality of insnlator units may be forned into a strin The interlinling curved passages are cut while the insulator body is in a plastic condition, subsequently to which the body is dried out and then fired. hen cut the passages are true but itfrequently happens that distortion occurs during` the firing process, this distortion causing' unevenness in the curvatnre.. The usual means 'for connecting insulators or" this type consists of rigid curved links inserted through these passages. If there is any distortion of the curvature of the passages it is readily apparent that there will be certain spot-s or portions higher than others and that these high spots will he engaged by the connecting links the strain being consequently concentrated at such points instead of being unifornly distributed as is proper.

It is with tne above facts inview that I have designed the present invention which has for its general object the provision of a link of such character that its passage engaging ace will coniorn to any inequa in the curved passage so that high spots will he conpensated for and the suains distributed.

The object ei' the invention, more specilically stated, is to provide a suspension link having seeured or united thcreto a liner oii ductile metal readily capable of withstanding the compression strains to which it is subjected in service while possessing sutficient ductility or pliahility as to flow and coniorni to the curved passage sui-i ace engaged thereby.

In iny coinpanion application filed 9 1925, Serial No. 21,907, l have desi ibed and illustrated a lined suspension lini( adapted particularly 'for use in connection with Hewlett insnlators of that variety in which `the link receiving passagcs are circular in cross section. However, iu constructing a lined link or a lining for a link of the flat type designed for use in connection with a variety of Hewlett insulators in which the link receiving passages are relatively wide 1925. Serial No. 21,906.

and shallow, certain difiiculties are enconntered which reqnire a soinewhat different Construction.

The obj ct of the present invention is to provide liner posseusing the above incntioncd characteristics but adapted ior use in connection with links ol? the fiat type To the attainnient oi? the foregoing objects and advantages the invention niay consst in the details oi' Construction and arrana'enent of parts to be hereinafter nore hdly described, illustrated and pointed out in the appended claiins.

In the drawing wherein like l'O'fGl'C'lCG char cte-rs ccsignate correspending` paris throughout the several views.

Figure l shows a vertical cross section through an insulator, showing a pair of linls n operative positioin one link eing; in side elevation and the other in section, the linh being equipped with ny liner.

figure 2 is a side elevation o' one oi' the links, showing the lincr in appliel position and illustrating, diagrannnatirillv, the nodc of securing the liner to the linin and Flgure 3 is an enlarged cross s ctionzl view taken through the linor alone prior to its application to the link. i

Referring to the drawing' in detail tle numeral l designates an iiisnlator of tle well known Hcwlett 'type provided with reversely er oppositcly arranged curved interpasages 2 and 3 for the reception I nih'r lin .l which may have any desired terminal co,` ruction in order that the links of adjacent units may be connected to form string.

in carrying' out the invention I provide. ch link with a liner dcsignated generall'v 'the nuineral 5, which liner is securcd to united with the lini; so as to remain a *ectve sheah, cover or envelope, phfication being` the utilization of a n i ab an alloy of lead and antimony or its equivalent, a convenient proportion ot' the ingredients being ninety-six per cent of lead and four per cent of antimony, the latter ingredient being used in such quantity as to have a sight hardening action without destroying the ductility ot' the alloy. Owing to the limited space within the curved pas- 'es and owing to the fact that the cross onal size of the link cannot be decreased to any great extent, the strip 6 is necessarily thin, a fact which presents obstacles to the enployment of ordinary inethods of joining the liner to the link.

In my co-pending application above nienioned l have shown a' liner which, being 'elatively thiclc, on account of its being deigned :tor use in connection with insulators iaving passages circular in cross section, is soldered or brazed direct-ly onto the inner face of the link, the link being heated, the liner clamped thereagainst and solder applied to portions of the edges. I pretor, in the present case, to join the liner to the link by the same method but owing to the thinness ot' the ductile strip, melting and distortion thereof, and possibly destruction, would occur it the liner were to be placed in direct contact with the link. For these reasons I preterably provide a protective 'cnvclopc 7 enclosing the strip (3, this envelope being constructed of some metal having a inelting point higher than the temperature to which the link and the liner must be subjected to ellect uniting by means ot solder or the like. lVhile there is no limitation desired in this respect, Zinc is highly suitable for the purpose. Actually, the Construction of this envelope might vary within wide limits though I have illustrated it as including a strip S of substantially the same width as the strip 6 and disposed against one fiat face thereot', and wider strip 9 disposed against the opposite flat face of the ductile strip 6 with its side edges curled over the side of the strip G and terininating in tlanges 10 engagin: against theouter 'face of the strip 8.

The complete liner including the envclope containing' the ductile strip or cushion element preterably initially curved to contorn to 'the curvature of the inner side of the link 4- and is disposcd tlereagainst. The link itselt may be heated to a temperature, say of 600 F. prior to the disposition of the liner thereagainst and the two are held together as tor example by means ot any suitaile jaw members 11 and 12 or the like indicated by det and dash lincs in Figure 2. Solder or its equivalent is then run along portions oif the edges of the link and liner, the exact length of the resultant soldered joint 13 being` imnaterial though it need notand preferably should not extend the full length, it being suthcient for it to extend between the points 14 and 15.

Assuming that the liner has been applied as above indicatecl, or Secured by any other equivalent and suitable means, the link is used in exactly the same nanner as the ordinary type but it is quite obvious that owing to the provision of the liner embodying the ductile strip or cushion the link can readily accommodate itself to inequalities in the confronting surface of the link receiving passage so that no undue strain will be brought at any point as a unitorn hearing surface will be had.

hile I have shown and described a prefcrrcd enbodiment ot' the invention, it should be understood that I reserve the right to nahe such changes in the form, Construction and arrangement of parts as will not depart froni thespirit of the invention or the scope of the subjoined clains.

Having thus described the invention, I claim:

l. An insulator suspension link including a curved body provided on its inner face with a liner torned as a strip oi" yieldahle inateri al enclosed within an envelope of a nature capable of contorning to irregularitics in the su rl ace oli' an insulator.

In a suspension link, a curvcd body, and a liner secured to the inner tace thereot', the liner includinga cushioning strip of relaiively ductile metal and a protective envelope ot harder nctal, having sullicicnt ductility to contorni to irregularitics in an insulator surface engaged thereby.

lu a suspension link, a curvcd body, and a liner secured to the inner face thereot', the liner including a cushioning strip of relatively ductile metal and a protcctivc envelope of harder metal, the cushioning strip consisting of an alloy ot' lead and a hardening agent, the envelope being; oi' a nature capable to contorn to an insulator surface engaged thereby.

4-. An ins laior suspension link comprising a body` and a liner joined thereto, the liner in eluding a strip of ductile metal and a proteeti \'e envclope there-torwherebythel iner may he ioined to the body with the appiica- 'Lion ot' hcat, ile envclope preventinc dcstruction of the ductile strip and possessing the quality ot con'torming to the surface ot an insulator e'gaged thereagainst.

An insulator suspension link including a body for-med to engage throuh an insulator, and a liner sccurcd to the insulator engaging face ol? the body, the liner including a strip ot cusnioning material and a protective en'velope theretor capable o't con'l orning to irrcgularities in the insulator surface ene l thereby.

6. An insulator suspension link including a body formed to engage through an insulator. and a liner secured to the insulator enparing face of the body, the liner including a strip of (HlShlODlllg material and a protective envelope theretor, the envelope including llO strips engaged upon opposite sides of the cushioning strip and embracing the edges thereof, the material of the envelope being such as to accommodate itself to iii-regularities in an insulater surface engaged thereby.

7. An insulator suspension link liner comprising a strip of ductile material and a metallic envelope therefor entirely enelosing the same, that portion of the envelope engageable with an insulator having suicient ductility to conform to irregularities in the surface of an insulator engaged thereby.

8. An insulator suspension link liner comprising a strip of ductile material and a metzliic euvelope therefor entirely enclosing the same, the envelope including a strip disposed aga' ist one face of the first-named strip, and a strip disposed against the other face of the first-named strip and having marginal flange pertiens embracingly engaging the edges of the first and second named strips and the outer face of the second-named strip, the strip engugeshle with an insulater being of a material cepable of conforniing to irregularities in the insulater surface engaged thereby.

9. In an insulator suspension link, the combinatien with a body adapted for engagement With an insulator, ef a liner disposed against the insulator engaging face of the body ane e lapted to be united thereto by the application of heat, the liner including a cushioning strip of ductile metal and a protective envelope therefor formed of a metal of a higher fusing point than the cushioning` strip wherehy to prevent destruction of the cushioning strip as the result of heat application, the envelepe further serving to prevent undue distortion of the cushioning strip under strain the envelope being formed of material of a nature capable of accommodating itself to inequalities in an insuletor sur- .face engeged thereby.

10. An insuiator suspension link liner formed es a cushion member of yieldable material and a protective envclope therefor capahle of being; secured te a suspension link and for-med of a metal capahle of accommodating itself to irregularities in an insulator surface.

11. In eembinution with an insulater suspension link having: a flat surface, a liner of cushioning material enclosed within a protective envelepe having a fiat surface engaging against the flat surface of the link the envelope being formed of a metal capable of eonforming te irregularties in the surface of &ll insulator engaged thereb v.

12. n combinetion with an insulator suspension link, a liner including a core of yieldable material enclosed within a protective envelope of metal capable of co'nforming` to the surface of un insulator engaged thereby.

13. In cembination With an insulator suspension link a liner including a core of yieldable material enclosed within a protective envclope of metal capable of conforming to the surface of an insulator engaged thereby, the lined side of the link being flat and the link engaging surface of the liner being correspondi-ng fiat.

14:. In combination with an insulator suspension link, a lincr including a core of yieldable material enclosed within a protective en- Velope of metal capable of conforning to the surface of un insulator engaged thereby the engaging surfaces of the link and liner being fiat and the liner eevering` substantially the entire width of the link.

15. In combinatien with an insulator suspension link a liner including a core of yieldable material enclosed within a protective envelope ef metal capable of conforming to the surface of an insulator engaged thereby, the engaging sui-faces of the link and liner being fiat and the liner covering substantially the entire width of the link, the surface of the liner udepted to eng-age an insulator being likewise flat.

16. An insulater suspension link hwiug` its insulater engaging face equipped with a liner extending substantially entirely thereacross and formed as a cushien member of vicldable material provided with a protective element of metal capable of conforming to irregularties in the insulator surface engaged thereby and facilitating attachment of the liner to the link.

17. An insulater suspension link having` its insulator engaging face equipped with a liner cxtending substantially entirely thereacross and formed as a cushion member of yieldable material provided en its insulator eng-aging face with a protective element of metal capable of conferming to irregulnrites in the insulator surface engu red thereby, the protective element extending beyend the edges of the cushion member.

18. An insulater suspension link of curved formation, a cushien member of vieldable material disposed against the cencave side thereof, and a protective element disposed against the conceve side of the cushien member in embracing rclatien to the edges thereef and secured to the link, the protective element being' ef u material capable of conforminp; to inequalities in an insulater surface enga ged thereby.

testimony whereef I afiix my signature.

MINOR F. H. GOUVERNEUR. 

